According to their Technical Data Sheet, 1 can will extrude a 3/8” bead approximately 134.0 ft under ideal conditions. So the cubic volume is 0.375" x 0.375" x (134' x 12)" = 226.125 cubic inches. 1 cubic foot = 1728 cubic inches. Therefore it would take about 7.6 cans to produce a cubic foot.

Can i apply this on a hot surface like car exhaust? Doesn't it catch fire?

I've used RTV silicone for minor muffler holes, good to 650 F. But it is flexible and doesn't stick to anything so you need to get it globbed onto both sides so it holds. Unfortunately the portion of a muffler that usually fails is where the pipe comes in (due to welding). JB Weld might work better there.

If this is injected between sheetrock walls, will it reduce sound transfer?

If you want to insulate the walls between rooms, it would be better to remove the sheetrock and use a spray foam insulation product, rather than a spray foam sealant. Bats of heavy rock wool might also be good sound insulation. A spray foam product expands for a minute or two and you risk popping the nails/screws holding the sheetrock in place if there is not enough room for it to expand fully. Trying to deaden the sound without removing the sheetrock would require punching lots of holes in the walls and spraying the foam through the holes, and then patching all of the holes and repainting. This will deaden the sound between rooms, but it will require a lot of cans to do it.

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Loctite Tite Foam Big Gaps Spray Foam Sealant, 12 fl oz Can, 1 Pack - Polyurethane Expanding Insulation

Loctite Tite Foam Big Gaps Spray Foam Sealant, 12 fl oz Can, 1 Pack - Polyurethane Expanding Insulation

Product ID: 160614683

Details

Brand
Loctite
Item Weight
16 ounces
Item dimensions L x W x H
2.56 x 2.56 x
Material
Plastic
Style
Foam sealant

🌞UV resistant for long-lasting outdoor use

📏Expands to fill gaps up to 3 inches

🛡️High density foam for durable insulation

$31.81

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Description

🚀 Seal Smart, Save Energy, Stay Ahead!

BUILT TO LAST - High-density foam with uniform cell structure ensures superior durability and insulation performance.
MAXIMIZE YOUR SEAL - Expands up to 3 inches to fill and insulate even the biggest gaps effortlessly.
FLEXIBLE RELIABLE - Withstands building movement without cracking or losing its airtight seal.
UNIVERSAL BONDING POWER - Adheres strongly to wood, concrete, metal, brick, PVC, and more for versatile applications.
WEATHERPROOF CONFIDENCE - UV resistant formula guarantees long-lasting protection indoors and out.

Loctite Tite Foam Big Gaps is a premium polyurethane expanding foam sealant designed to fill, seal, and insulate gaps up to 3 inches. Its high-density, flexible formula bonds to a wide range of materials and resists UV damage, making it ideal for both interior and exterior use. Perfect for professionals and DIYers aiming to enhance energy efficiency, block pests, and protect their spaces with a durable, paintable finish.

Specifications

ASIN	B07Q3WPB6B
Best Sellers Rank	#351 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Industrial Joint Sealants
Brand Name	Loctite
Color	White
Compatible Material	Brick, Concrete, Metal, Polyvinyl Chloride, Stone, Wood
Customer Reviews	4.4 4.4 out of 5 stars (12,034)
Global Trade Identification Number	00079340652385
Included Components	Loctite TITE FOAM Insulating Foam Sealant, Big Gaps, 12-Ounce Can
Item Dimensions	2.56 x 2.56 x 7.87 inches
Item Form	Spray
Item Type Name	Foam Sealant, Big Gaps
Item Weight	16 ounces
Manufacturer	HENKEL ADHESIVES
Material Type	Plastic
Model	2975888
Number of Items	1
Number of Packs	1
Part Number	2975888
Style Name	Foam sealant
Surface Recommendation	Floor
UPC	079340652385
Unit Count	1 Count
Warranty Description	Warranty
Water Resistance Level	Water Resistant

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